A winch with an anti-locking structure comprises a support and a worm wheel, the two sides of the worm wheel are provided with a ring-shaped left positioning boss and a ring-shaped right positioning boss which protrude outward, the left positioning boss is sleeved with a left positioning sleeve, the
A winch with an anti-locking structure comprises a support and a worm wheel, the two sides of the worm wheel are provided with a ring-shaped left positioning boss and a ring-shaped right positioning boss which protrude outward, the left positioning boss is sleeved with a left positioning sleeve, the right positioning boss is sleeved with a right positioning sleeve, and the outer circumferential surface of the left positioning boss is gaplessly sleeved with a circular hole wall of the left positioning sleeve, the outer circumferential surface of the left positioning sleeve is gaplessly sleeved with an inner hole of the case body, the outer circumferential surface of right positioning boss is gaplessly sleeved with a circular hole wall of the right positioning sleeve, the outer circumferential surface of the right positioning sleeve is gaplessly sleeved with the inner hole of the case body.
대표청구항▼
1. A winch with an anti-locking structure, comprising: a support (1), a side of the support (1) is fixedly connected with a case body (2);a worm wheel (3) and a worm (4) that are meshed with each other and are arranged in the case body (2), the worm (4) is fixed inside the case body (2);a belt shaft
1. A winch with an anti-locking structure, comprising: a support (1), a side of the support (1) is fixedly connected with a case body (2);a worm wheel (3) and a worm (4) that are meshed with each other and are arranged in the case body (2), the worm (4) is fixed inside the case body (2);a belt shaft (5) is arranged in the support (1), an end of the belt shaft (5) is connected with the worm wheel (3);two sides of the worm wheel (3) that are provided with a ring-shaped left positioning boss (31) and a ring-shaped right positioning boss (32) that protrude outward, the left positioning boss (31) is sleeved with a left positioning sleeve (6), the right positioning boss (32) is sleeved with a right positioning sleeve (7);an inner hole (61) of the left positioning sleeve (6) that is a circular hole;an outer circumferential wall of left positioning boss (31) that is gaplessly sleeved with a hole wall of the inner hole (61) of the left positioning sleeve (6);an inner hole (21) of the case body (2) that is gaplessly sleeved with an outer circumferential surface of the left positioning sleeve (6);an inner hole (71) of the right positioning sleeve (7) that is a circular hole;an outer circumferential surface of right positioning boss (32) that is gaplessly sleeved with a hole wall of the right positioning sleeve (7); anda circumferential surface of the inner hole (21) of the case body (2) that is gaplessly sleeved with an outer circumferential surface of the right positioning sleeve (7). 2. The winch of claim 1, wherein an outer end face of the left positioning sleeve (6) is provided with a protruding annular blocking edge (8); wherein an outer diameter of the annular blocking edge (8) is smaller than an outer diameter of the left positioning sleeve (6);wherein a left cover plate (9) is fixedly connected to a side of the case body (2); andwherein an outer circumferential surface of the annular blocking edge (8) is gaplessly sleeved with a circumferential surface of an inner hole (91) of the left cover plate (9). 3. The winch of claim 1, wherein the belt shaft (5) is provided with an annular protruding shoulder (52) that protrudes outward; the protruding shoulder (52) is gaplessly sleeved with an inner hole (61) of the left positioning sleeve (6);wherein the support (1) is U-shaped, and a first through hole (18) and a second through hole (19) are formed in the support (1);the belt shaft (5) penetrates through the first through hole (18) and the second through hole (19), and is sleeved with inner walls of the first through hole (18) and the second through hole (19) respectively; andwherein the protruding shoulder (52) is close to the second through hole (19). 4. The winch of claim 3, wherein a position at the second through hole (19) in the support (1) is provided with a positioning groove (17); and wherein the annular blocking edge (8) is inserted into the positioning groove (17). 5. The winch of claim 1, wherein an outer end face of the right positioning sleeve (7) is provided with a protruding circular blocking plate (10); wherein an outer diameter of the circular blocking plate (10) is smaller than an outer diameter of the right positioning sleeve (7);wherein a right cover plate (11) is fixedly connected to a side of the case body (2);wherein an outer circumferential surface of the circular blocking plate (10) is sleeved with a circumferential surface of an inner hole (111) of the right cover plate (11). 6. The winch of claim 1, wherein an inner end face of the left positioning sleeve (6) is provided with a left spacer ring (12) that protrudes in an axial direction of the belt shaft (5); wherein an inner end face of the right positioning sleeve (7) is provided with a right spacer ring (13) that protrudes in an axial direction of the belt shaft (5); andwherein the worm wheel (3) is positioned between the left spacer ring (12) and the right spacer ring (13). 7. The winch of claim 6, wherein a thickness of the left spacer ring (12) in an axial direction of the belt shaft (5) is smaller than a thickness of the left positioning sleeve (6) in an axial direction of the belt shaft (5); wherein an outer diameter of the left spacer ring (12) is smaller than an outer diameter of the left positioning sleeve (6);wherein a thickness of the right spacer ring (13) in an axial direction of the belt shaft (5) is smaller than a thickness of the right positioning sleeve (7) in the axial direction of the belt shaft (5); andwherein an outer diameter of the right spacer ring (13) is smaller than an outer diameter of the right positioning sleeve (7). 8. The winch of claim 1, wherein a connecting hole (33) is formed in the worm wheel (3); wherein an end of the belt shaft (5) is provided with a connecting part (51) that is matched with a shape of a hole wall of the connecting hole (33), and the belt shaft (5) is capable of driving the worm wheel (3) to rotate; andwherein a gap (40) is arranged between the connecting part (51) and the hole wall of the connecting hole (33). 9. The winch of claim 8, wherein a cross section of the connecting hole (33) in a radial direction of the worm wheel (3) is in a shape of a regular polygon. 10. The winch of claim 1, wherein an outer handle (20) is fixedly arranged at an end of the belt shaft (5) through screws; wherein the outer handle (20) is positioned at an outer side of the U-shaped support (1); andwherein the protruding shoulder (52) is positioned outside the U-shaped support (1) so as to prevent the belt shaft (5) from moving in an axial direction. 11. The winch of claim 2, wherein an outer handle (20) is fixedly arranged at an end of the belt shaft (5) through screws; wherein the outer handle (20) is positioned at an outer side of the U-shaped support (1); andwherein the protruding shoulder (52) is positioned outside the U-shaped support (1) so as to prevent the belt shaft (5) from moving in an axial direction. 12. The winch of claim 5, wherein an outer handle (20) is fixedly arranged at an end of the belt shaft (5) through screws; wherein the outer handle (20) is positioned at an outer side of the U-shaped support (1); andwherein the protruding shoulder (52) is positioned outside the U-shaped support (1) so as to prevent the belt shaft (5) from moving in an axial direction. 13. The winch of claim 2, wherein the belt shaft (5) is provided with an annular protruding shoulder (52) that protrudes outward; the protruding shoulder (52) is gaplessly sleeved with an inner hole (61) of the left positioning sleeve (6);wherein the support (1) is U-shaped, and a first through hole (18) and a second through hole (19) are formed in the support (1);the belt shaft (5) penetrates through the first through hole (18) and the second through hole (19), and is sleeved with inner walls of the first through hole (18) and the second through hole (19) respectively; andwherein the protruding shoulder (52) is close to the second through hole (19). 14. The winch of claim 13, wherein a position at the second through hole (19) in the support (1) is provided with a positioning groove (17); and wherein the annular blocking edge (8) is inserted into the positioning groove (17). 15. The winch of claim 2, wherein an inner end face of the left positioning sleeve (6) is provided with a left spacer ring (12) that protrudes in the axial direction of the belt shaft (5); wherein an inner end face of the right positioning sleeve (7) is provided with a right spacer ring (13) that protrudes in an axial direction of the belt shaft (5); andwherein the worm wheel (3) is positioned between the left spacer ring (12) and the right spacer ring (13). 16. The winch of claim 5, wherein an inner end face of the left positioning sleeve (6) is provided with a left spacer ring (12) that protrudes in the axial direction of the belt shaft (5); wherein an inner end face of the right positioning sleeve (7) is provided with a right spacer ring (13) that protrudes in an axial direction of the belt shaft (5); andwherein the worm wheel (3) is positioned between the left spacer ring (12) and the right spacer ring (13). 17. The winch of claim 15, wherein a thickness of the left spacer ring (12) in an axial direction of the belt shaft (5) is smaller than a thickness of the left positioning sleeve (6) in an axial direction of the belt shaft (5); wherein an outer diameter of the left spacer ring (12) is smaller than an outer diameter of the left positioning sleeve (6);wherein a thickness of the right spacer ring (13) in an axial direction of the belt shaft (5) is smaller than a thickness of the right positioning sleeve (7) in the axial direction of the belt shaft (5); andwherein an outer diameter of the right spacer ring (13) is smaller than an outer diameter of the right positioning sleeve (7). 18. The winch of claim 16, wherein a thickness of the left spacer ring (12) in an axial direction of the belt shaft (5) is smaller than a thickness of the left positioning sleeve (6) in an axial direction of the belt shaft (5); wherein an outer diameter of the left spacer ring (12) is smaller than an outer diameter of the left positioning sleeve (6);wherein a thickness of the right spacer ring (13) in an axial direction of the belt shaft (5) is smaller than a thickness of the right positioning sleeve (7) in the axial direction of the belt shaft (5); andwherein an outer diameter of the right spacer ring (13) is smaller than an outer diameter of the right positioning sleeve (7). 19. The winch of claim 2, wherein a connecting hole (33) is formed in the worm wheel (3); wherein an end of the belt shaft (5) is provided with a connecting part (51) that is matched with a shape of a hole wall of the connecting hole (33), and the belt shaft (5) is capable of driving the worm wheel (3) to rotate; andwherein a gap (40) is arranged between the connecting part (51) and the hole wall of the connecting hole (33).
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이 특허에 인용된 특허 (3)
Genge, David, Portable gear ratchet for tie-downs.
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